CN204886967U - Extension changeable data expanding unit of quantity and optical fiber system - Google Patents
Extension changeable data expanding unit of quantity and optical fiber system Download PDFInfo
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- CN204886967U CN204886967U CN201520502932.6U CN201520502932U CN204886967U CN 204886967 U CN204886967 U CN 204886967U CN 201520502932 U CN201520502932 U CN 201520502932U CN 204886967 U CN204886967 U CN 204886967U
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Abstract
The utility model discloses a changeable data expanding unit of extension quantity, a serial communication port, include a plurality of input photoelectric conversion modules and each data processing module that input photoelectric conversion module is connected, with output photoelectric conversion module that data processing module connects and with light that output photoelectric conversion module is connected along separate routes / close the way module, light along separate routes / close the way module and include a third light mouthful, K fourth light mouth and connection the processing unit of a third light mouthful and a K fourth light mouth, third light mouthful corresponding a connection output photoelectric conversion module, every fourth light mouthful connection data expanding unit or distal end unit, wherein, K is for being greater than 1 natural number. The utility model also discloses a fiber distribution system.
Description
Technical field
The utility model relates to electronic device field, particularly relates to a kind of expanding element and the optical fiber distribution system fibre system of expanding variable amounts.
Background technology
China telecommunication is through development long-term for many years, define 2G/3G/4G gradually and the situation of depositing, mobile communication signal transmission is all transmitted by certain frequency, and the frequency that three large operators have and network formats are not quite similar, in the market in the standard used respectively:
China Mobile: GSM800, GSM1800, TD-SCDMA, TD-LTE;
CHINAUNICOM: GSM800, GSM1800, WCDMA, TD-LTE, FDD-LTE;
China Telecom: CDMA, CDMA2000, TD-LTE, FDD-LTE.
Above-mentionedly also do not comprise each generation excessive standard of producing in speech process of the communication technology, be not difficult to find out that china telecommunication standard just is under arms many thus, each operator differs based on the frequency used under various communication standard is just more numerous and diverse, this communication present situation makes the construction plan of quorum sensing inhibitor complicated, and difficulty of construction is large, easy formation coverage hole and ping-pong, cover difficulty and the cost of signal optimizing, cause public resource to waste after also increasing.
In this case, multi-service compartment system (MultiserviceDistributedAccessSystemSolution, MDAS) arise at the historic moment, MDAS adopts netting twine/optical fiber as transmission medium, support Duo Jia operator, support multi-modulation scheme, multicarrier, and integrated WLAN (WirelessLAN, WLAN (wireless local area network)) system, one step solves voice and data traffic requirement, improve the accuracy of quorum sensing inhibitor, also the complexity of quorum sensing inhibitor engineering and the difficulty of construction maintenance is greatly reduced, compared with traditional analog compartment system, possesses mixed networking simultaneously, delay compensation, automatic carrier track, make an uproar the feature such as low in the up end.
MDAS forms primarily of access unit (MAU/MU), expanding element (MEU/EU) and far-end unit (MRU/RU).
MDAS basic functional principle is as follows:
After the signal of base station/RRU is linked into system by down link (base station---> user): MU, digital processing packing is carried out to signal and form digital signal, then by opto-electronic conversion, digital signal is converted to optical signals Optical Fiber Transmission to EU; The signal that MU is come by Optical Fiber Transmission processes by EU, then by Optical Fiber Transmission to RU; The signal transacting that EU transmits by RU is gone out by antenna cover, is transferred to user after amplifying.
Up link (user---> base station): after the information that user sends out is received by RU, RU to signal process again by Optical Fiber Transmission to EU; Light signal is formed by opto-electronic conversion after the signal that all RU transmit by EU carries out digitized processing packing, then by Optical Fiber Transmission to MU; MU, by after the digital signal of EU packing reduction, is transferred to base station/RRU.
Nowadays multi-service optical fiber distribution system market used the most basic structure composition as shown in Figure 1, but this basic structure cannot meet actual application demand, and waste resource, thus derive following several concentrated networking mode used in practical application scene by the system basic structure of multi-service optical fiber distribution system:
1) star-like networking (as shown in Figure 2);
2) chrysanthemum type networking (as shown in Figure 3);
3) mixed type networking (as shown in Figure 4).
The essence of the 3 kinds of networking modes be made up of basic structure is the extended capabilities utilizing EU, and EU supports the expansion of RU thus realizes star-like networking mode; EU supports the expansion cascading of EU thus realizes chrysanthemum type networking mode; Two kinds of extended capability set use thus realize mixed networking mode.
The standard that the multi-service optical fiber distribution system of above-mentioned three kinds of networking modes is supported and frequency range determine by a main access unit (MU), when MU only supports standard and the frequency range of China Mobile 2G/3G/4G, no matter the multi-service optical fiber distribution system of which kind of networking mode also can only cover and process the communication service of China Mobile.Supporting that as needed the business demand of other operators just needs to replace whole multi-service optical fiber distribution system, comprising MU, EU and RU, or install a whole set of support standard of other operators and the multi-service optical fiber distribution system of frequency range again additional.Such as: on the former basis having covered China Mobile's signal, expand UNICOM and telecommunication signal covers, realize in the following manner:
Add respectively and support that UNICOM and the standard of telecommunications and the optical fiber distribution system of frequency range are in order to cover respective signal, so realize full signal covering and just need amount to 3 unjacketed optical fiber compartment systems, system rectification schematic diagram as shown in Figure 5.
Above-mentioned implementation needs to arrange the above compartment system of two covers, realizes the whole network and covers and all need again or repeatedly wholly-owned input, cover quantities and also will be multiplied, cause the wasting of resources.
Visible, carry out standard expansion to realize the multichannel access of different location information source to the region using existing multi-service optical fiber distribution system to cover, quantities and cost can be multiplied, original serious waste of resources.
Utility model content
The object of the utility model embodiment is to provide a kind of expanding element and the fibre system of expanding variable amounts, effectively can break through the unmodifiable bottleneck of expanding element expansion quantity, can also realize customization to expansion quantity.
The utility model embodiment provides a kind of expanding element expanding variable amounts, it is characterized in that, comprise multiple input photoelectric conversion module, with input described in each the data processing module that photoelectric conversion module is connected, the output photoelectric modular converter be connected with described data processing module and the light that is connected with described output photoelectric modular converter along separate routes/close road module; Described light shunt/conjunction road module comprises a 3rd light mouth, K a 4th light mouth and connects the processing unit of described 3rd light mouth and K the 4th light mouth, described 3rd light mouth correspondence connects described output photoelectric modular converter, and each described 4th light mouth connects expanding element or far-end unit; Wherein, K be greater than 1 natural number.
As the improvement of such scheme, described processing unit comprises 1*K wavelength division multiplexer and 1*K optical branching device;
A descending input port correspondence of described 1*K optical branching device connects described 3rd light mouth, and K descending delivery outlet correspondence of described 1*K optical branching device connects described K the 4th light mouth;
K up input port correspondence of described 1*K wavelength division multiplexer connects described K the 4th light mouth, and a up delivery outlet correspondence of described 1*K wavelength division multiplexer connects described 3rd light mouth.
As the improvement of such scheme, also comprise ethernet module, monitoring module and power module, described ethernet module is connected with described data processing module; Described monitoring module and power module are all connected described input opto-electronic conversion mould, data processing module, output photoelectric modular converter and light shunt/conjunction road module.
The utility model embodiment still provides a kind of optical fiber distribution system, comprise multiple access unit, connect at least one expanding element of access unit described in each respectively, and at least one far-end unit to be connected with described expanding element, wherein, access unit described in each adopts the single system structure supporting multiple communication standards of different operators respectively, and described expanding element is the expanding element expanding variable amounts as above.
In one embodiment, access unit described in each comprises multiple radio-frequency module, the data processing module be connected with radio-frequency module described in each and connects the photoelectric conversion module of described data processing module.
In one embodiment, far-end unit described in each adopts the single system structure supporting multiple communication standards of different operators respectively, far-end unit described in each comprises the photoelectric conversion module, data processing module and the RF Amplifier Module that connect successively, and described photoelectric conversion module is provided with optical port connects described expanding element a 4th light mouth with correspondence.
In another embodiment, far-end unit described in each adopts the full system type pictorial structure simultaneously supporting multiple communication standards of different operators, multiple RF Amplifier Modules that far-end unit described in each comprises photoelectric conversion module, the data processing module be connected with described photoelectric conversion module and is connected with described data processing module respectively, RF Amplifier Module described in each adopts the structure supporting multiple communication standards of different operators respectively, and described photoelectric conversion module is provided with optical port connects described expanding element a 4th light mouth with correspondence.
Compared with prior art, expanding element and the fibre system of the utility model disclosed expansion variable amounts have following effect: the export expansion of expanding element EU in prior art multiple output photoelectric modules along separate routes removed and only leave a road output photoelectric modular converter, optical signals light shunt after conversion/conjunction road module is divided into multipath light signal to realize the function expanded, under certain condition, the light signal that such as output photoelectric modular converter exports is enough strong or light signal is little by the decay after optical fiber, so light shunt/closing road module port number can be unrestricted, the advantage of this mode just breaches expanding element EU and expands the unmodifiable bottleneck of quantity.It is 8 tunnels that common expanding element EU expands quantity, and to adopt can be 16 or 32 etc. in this way easily along separate routes by light signal.And, RU quantity can also be expanded to EU and realize customization, as 3 roads or 5 roads or 11 tunnels export, and only need change light along separate routes/close the amendment that road module can realize output port number.
Accompanying drawing explanation
Fig. 1 is the basic structure schematic diagram of a kind of optical fiber distribution system in prior art.
Fig. 2 is the structural representation of the optical fiber distribution system adopting star-like networking mode to form.
Fig. 3 is the structural representation of the optical fiber distribution system adopting chrysanthemum type networking mode to form.
Fig. 4 is the structural representation of the optical fiber distribution system adopting mixed type networking mode to form.
Fig. 5 is a kind of structural representation realizing the optical fiber distribution system of different location information source in prior art.
Fig. 6 is the structural representation of a kind of fibre system that the utility model embodiment 1 provides.
Fig. 7 is the structural representation of the access unit of a kind of fibre system that the utility model embodiment 2 provides.
Fig. 8 is the structural representation of the expanding element of a kind of fibre system that the utility model embodiment 3 provides.
Fig. 9 be light in the expanding element shown in Fig. 8 along separate routes/close the structural representation of an embodiment of road module.
Figure 10 is the structural representation of the far-end unit of a kind of fibre system that the utility model embodiment 4 provides.
Figure 11 is the structural representation of the far-end unit of a kind of fibre system that the utility model embodiment 5 provides.
Figure 12 is the workflow diagram of a kind of fibre system that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
See Fig. 6, it is the structural representation of a kind of fibre system that the utility model embodiment provides.As shown in the figure, this fibre system comprises multiple access unit MU, connects at least one expanding element EU of access unit MU described in each respectively, and at least one far-end unit RU to be connected with described expanding element EU, wherein, access unit MU described in each supports multiple communication standards of different operators respectively.
Such as, the optical fiber distribution system of the present embodiment includes three access units MU1, MU2 and MU3, wherein, MU1 only supports multiple communication standards (comprising GSM800, GSM1800, TD-SCDMA, TD-LTE) of operator of China Mobile, MU2 only supports multiple communication standards (comprising GSM800, GSM1800, WCDMA, TD-LTE, FDD-LTE) of operator of CHINAUNICOM, and MU3 only supports multiple communication standards (comprising CDMA, CDMA2000, TD-LTE, FDD-LTE) of China Telecom.The optical fiber distribution system of the present embodiment comprises 6 expanding elements EU1, EU2, EU3, EU4, EU5 and EU6, and wherein the upstream data input (downlink data output) of EU1, EU2, EU3 is all connected with the upstream data output (downlink data input) of access unit MU1, MU2 and MU3 by optical fiber.And the upstream data output of each expanding element EU can connect multiple expanding element respectively, such as, the upstream data output of expanding element EU1 is connected to 8 far-end units RU1, RU2, RU3, RU4, RU5, RU6, RU7 and RU8.
In addition, the expansion that the upstream data output (downlink data input) of each expanding element EU can also be connected to realize further with another expanding element EU data is transmitted, such as, the upstream data output (downlink data input) of expanding element EU3 is connected with the upstream data input (downlink data output) of expanding element EU4, and the upstream data output of expanding element EU4 (downlink data input) is connected with the upstream data input (downlink data output) of expanding element EU5.
Understandable, in this enforcement, access unit described in each adopts single system structure, and expanding element EU described in each adopts full system type pictorial structure, and described far-end unit can adopt full system type pictorial structure or single system structure.Wherein, single system structure refers to and only supports multiple communication standards of single operator (such as, only supporting the communication standard of China Mobile/CHINAUNICOM/China Telecom); And full system type pictorial structure refers to the communication standard (such as, supporting whole communication standards of China Mobile, CHINAUNICOM and China Telecom) can supporting all operators.
In the down link of the optical fiber distribution system of the present embodiment, after the radiofrequency signal received is added corresponding communication standard label by access unit MU described in each, send to expanding element EU described in corresponding each by optical fiber; Expanding element EU described in each all sends to far-end unit RU described in corresponding each by optical fiber after the light signal that the multiple access unit MU of the support different operators received send is carried out data processing; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by far-end unit RU described in each is to be transmitted to user.
The present embodiment optical fiber distribution system in the uplink, send to corresponding expanding element EU by optical fiber after the radiofrequency signal that the user received launches is added corresponding communication standard label by far-end unit RU described in each; Described expanding element EU, according to the communication standard label in the light signal received, will send to the access unit MU supporting this communication standard after the optical signal prosessing received; The radiofrequency signal that the light signal received carries out processing to convert corresponding communication standard to by described access unit MU is to send to corresponding information source.
Understandable, what in the optical fiber distribution system of Fig. 6 display, the networking mode of EU and RU adopted is mixed networking mode, but the optical fiber distribution system of the present embodiment also can adopt star-like networking or chrysanthemum type networking mode.
With reference to figure 7, it is the structural representation of the access unit MU of a kind of fibre system that the utility model embodiment provides.The access unit MU of the present embodiment is as the main access device of whole optical fiber distribution system, for the downlink radio-frequency signal of the base station/RRU that is coupled by feeder line, and digital processing packing formation digital signal is carried out to this radiofrequency signal, then opto-electronic conversion is carried out to this digital signal and become light signal; And the uplink optical signal received from EU, by opto-electronic conversion, light signal is converted to digital signal, then radiofrequency signal is reduced to the Digital Signal Processing of packing, send to base station/RRU via feeder line.
Concrete, the access unit MU of the present embodiment comprises multiple radio-frequency module 11, the data processing module 12 be connected with radio-frequency module described in each 11 and connects the photoelectric conversion module 13 of described data processing module 12, wherein:
Described in each, radio-frequency module 11 is provided with prevention at radio-frequency port, is received the radiofrequency signal of a communication standard of same operator by feeder line correspondence, and converts digital signal to and send to described digital signal processing module 12; And convert the digital signal that digital signal processing module 12 sends to radiofrequency signal to send to corresponding information source;
The radiofrequency signal digitized processing of described data processing module 12 for described radio-frequency module 11 is received, and send to photoelectric conversion module 13 described in each after adding corresponding communication standard label packing formation digital signal; And after digital signal dissection process after being changed by photoelectric conversion module described in each 13, send to corresponding radio-frequency module 11 according to the communication standard label in described digital signal;
Described in each, photoelectric conversion module 13 correspondence connects a described expanding element EU, and the digital signal for being sent by described data processing module 12 converts light signal to and exports to corresponding expanding element; And convert the light signal of input to digital signal and send to described data processing module 12.
Preferably, the access unit MU of the present embodiment also comprises power module 14 and monitoring module 15, wherein, power module 14 is for giving the power supply of each functional module (comprising radio-frequency module 11, data processing module 12, photoelectric conversion module 13 and monitoring module 15) in MU.And described monitoring module 15 is for monitoring the operating state of each functional module (comprising radio-frequency module 11, data processing module 12, photoelectric conversion module 13 and power module 14) in described access unit, and monitored results is sent to Surveillance center in time, to ensure the normal work of access unit.
With reference to figure 8, it is a structural representation of a kind of expanding element EU that the utility model embodiment provides.Concrete, the expanding element EU of the present embodiment is the expanding element of expansion variable amounts, comprise multiple input photoelectric conversion module 21, with input the data processing module 22 that photoelectric conversion module 21 is connected, the output photoelectric modular converter 23 be connected with described data processing module 22 described in each and be connected the light shunt/close road module 29 of 23 with described output photoelectric modular converter; Wherein:
Input photoelectric conversion module 21 (being provided with optical port) correspondence described in each and connect a described access unit MU, after converting the light signal of input to digital signal, send to described data processing module 22; And convert the digital signal that described data processing module 22 sends to light signal to export to corresponding access unit;
Described data processing module 22 sends to described output photoelectric modular converter 23 by inputting described in each after digital signal that photoelectric conversion module 21 sends carries out data processing (packing); And according to the communication standard label in the digital signal of described output photoelectric modular converter 23 transmission, orientation is transmitted to the input photoelectric conversion module 21 that connect corresponding to supporting the access unit of this communication standard; Such as, in the present embodiment, when data processing module 22 receives the communication standard label of the digital signal Zhong Dai China Mobile that described output photoelectric modular converter 23 sends, then the digital signal after process being sent to the input photoelectric conversion module 21 that connect corresponding to supporting the access unit MU1 of this communication standard, converting light signal to by input photoelectric conversion module 21 and sending to described access unit MU1.
The railway digital signal that described data processing module 22 sends by described output photoelectric modular converter 23 converts a road light signal to send to described light shunt/conjunction road module 29; And convert the road light signal that described light shunt/conjunction road module 29 inputs to a railway digital signal to send to described data processing module 22;
Described light shunt/conjunction road module 29 is divided into the identical light signal of multichannel to export to far-end unit RU or expanding element EU for the road light signal sent by described output photoelectric modular converter 23; And the multipath light signal of input is synthesized a road light signal to send to described output photoelectric modular converter 23.
Preferably, in the present embodiment, expanding element EU described in each also comprises the ethernet module 26 be connected with described data processing module 22, and described ethernet module 26 for access network based on ethernet data, and sends to described data processing module 22.After described data processing module 22 receives the Ethernet data that described ethernet module 26 sends, after adding corresponding communication standard label with input described in each digital signal that photoelectric conversion module sends together pack after again subpackage send to output photoelectric modular converter 23 described in each.
As the improvement of such scheme, described in each, expanding element EU also comprises power extension module 25, powers for each far-end unit RU connected to described expanding element EU.
As the improvement of such scheme, described in each, expanding element EU also comprises monitoring module 24, for monitoring the operating state of each functional module (comprising input photoelectric conversion module 21, data processing module 22, output photoelectric modular converter 23, ethernet module 26 and power extension module 25) in described expanding element EU, and monitored results is sent to Surveillance center in time, to ensure the normal work of expanding element.
Wherein, the light shunt/conjunction road module 29 of the present embodiment can adopt structure as shown in Figure 9.
This light shunt/conjunction road module 29 comprises a 3rd light mouth 290, K the 4th light mouth 293,1*K wavelength division multiplexer 291 and 1*K optical branching device 292; Wherein, K be greater than 1 natural number.
A descending input port correspondence of described 1*K optical branching device 292 connects described 3rd light mouth 290, and K descending delivery outlet correspondence of described 1*K optical branching device 292 connects described K the 4th light mouth 293; The road downlink optical signal that described 3rd light mouth 290 inputs is divided into the identical light signal in K road by described 1*K optical branching device 292, exports respectively by described K the 4th light mouth 293;
K up input port correspondence of described 1*K wavelength division multiplexer 291 connects described K the 4th light mouth 293, and a up delivery outlet correspondence of described 1*K wavelength division multiplexer 291 connects described 3rd light mouth 290.Described 1*K wavelength division multiplexer 291 is exported by described 3rd light mouth 290 after the K road uplink optical signal that described K the 4th light mouth 293 inputs is synthesized a road light signal.
Visible, the export expansion of expanding element EU in prior art multiple output photoelectric modules 23 are along separate routes removed and are only left a road output photoelectric modular converter 23 by the expanding element EU of the present embodiment, optical signals light shunt after conversion/conjunction road module 29 is divided into multipath light signal to realize the function expanded, under certain condition, the light signal that such as output photoelectric modular converter 23 exports is enough strong or light signal is little by the decay after optical fiber, so light shunt/closing road module 29 port number can be unrestricted, the advantage of this mode just breaches expanding element EU and expands the unmodifiable bottleneck of quantity.It is 8 tunnels that common expanding element EU expands quantity, and to adopt can be 16 or 32 etc. in this way easily along separate routes by light signal.And, RU quantity can also be expanded to EU and realize customization, as 3 roads or 5 roads or 11 tunnels export, and only need change the amendment that light shunt module can realize output port number.
With reference to Figure 10, it is the structural representation of the far-end unit RU of a kind of fibre system that the utility model embodiment provides.Wherein, the far-end unit RU of the present embodiment adopts single system structure, and namely far-end unit RU described in each supports multiple communication standards of different operators respectively.Concrete, far-end unit RU described in each comprises the photoelectric conversion module 31, data processing module 32, the RF Amplifier Module 33 that connect successively.Wherein:
Described photoelectric conversion module 31 (being provided with optical port) connects expanding element EU, for the light signal of reception being converted to digital signal to send to described data processing module 32 by optical fiber correspondence; And convert the digital signal that described data processing module 32 sends to light signal to export to corresponding expanding element;
The digital signal that described photoelectric conversion module 31 sends carries out processing (data unpack) by described data processing module 32, the data filtering of the communication standard self do not supported, and the signal after filtering is sent to described RF Amplifier Module 33; And send to described photoelectric conversion module 31 after the digital signal that described RF Amplifier Module 33 sends is added corresponding communication standard label.Such as, when described data processing module 32 receives the data of data and the CHINAUNICOM's communication standard comprising China Mobile's standard in the digital signal of described photoelectric conversion module 31 transmission, if this far-end unit RU itself only supports China Mobile's standard, so, described data processing module 32 by unpack rear in the data filtering comprising CHINAUNICOM's communication standard, the remaining data comprising China Mobile's standard send to RF Amplifier Module 33.In addition, when comprising the Ethernet data of the communication standard supported itself in the data after filtering, then (pass through corresponding port) and directly send to the computer terminal connecting Ethernet.
Described RF Amplifier Module 33 converts the signal that data processing module 32 sends to radiofrequency signal and amplifies to be transmitted to user's (mobile terminal); And send to described data processing module 32 by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
Understandable, the RF Amplifier Module 33 in the present embodiment can support multiple communication standards of same operator, and it also can comprise multiple radio frequency amplifying unit, and each radio frequency amplifying unit correspondence supports a communication standard of same operator.Like this, the data-directed after filtration can be transmitted to based on communication standard label the radio frequency amplifying unit supporting this communication tags by described data processing module 32.
Preferably, the far-end unit RU of the present embodiment also comprises powered module 34 and monitoring module 35, described powered module 34 for connecting the power extension module 25 of expanding element EU, for each functional module (comprise photoelectric conversion module 31, data processing module 32, RF Amplifier Module 33 and the monitoring module 35) power supply of electric energy distally in unit R U that will receive.Described monitoring module 35 is for monitoring the operating state of each functional module (comprising photoelectric conversion module 31, data processing module 32, RF Amplifier Module 33 and powered module 34) in described far-end unit RU, and monitored results is sent to Surveillance center in time, to ensure the normal work of far-end unit RU.
With reference to Figure 11, it is another structural representation of the far-end unit RU of a kind of fibre system that the utility model embodiment provides.Wherein, the far-end unit RU of the present embodiment adopts full system type pictorial structure, and namely the far-end unit RU of the present embodiment supports all communication standards of various operator.
Concrete, multiple RF Amplifier Modules 33 that this far-end unit RU comprises photoelectric conversion module 31, the data processing module 32 be connected with described photoelectric conversion module 31 and is connected with described data processing module 32 respectively, RF Amplifier Module 33 described in each supports multiple communication standards of different operators respectively, wherein:
Described photoelectric conversion module 31 (being provided with optical port) connects expanding element EU, for the light signal of reception being converted to digital signal to send to described data processing module 32 by optical fiber correspondence; And convert the digital signal that described data processing module 32 sends to light signal to export to corresponding expanding element;
The digital signal that described photoelectric conversion module 31 sends carries out processing (data unpack) by described data processing module 32, and according to the communication standard label in digital signal, the digital signal after process is sent to the RF Amplifier Module 33 supporting this communication standard; And send to described photoelectric conversion module 31 after the digital signal that described RF Amplifier Module 33 sends is added corresponding communication standard label; Such as, when described data processing module 32 receives the data of data and the CHINAUNICOM's communication standard comprising China Mobile's standard in the digital signal of described photoelectric conversion module 31 transmission, then the data correspondence comprising China Mobile's standard is sent to the RF Amplifier Module 33 supporting this communication standard, and the data comprising CHINAUNICOM's communication standard are sent to another RF Amplifier Module 33 supporting this communication standard.Same, when comprising the Ethernet data of the communication standard supported itself in described data processing module 32, then (pass through corresponding port) and directly send to the computer terminal connecting Ethernet.
RF Amplifier Module 33 described in each converts the signal that data processing module 32 sends to radiofrequency signal and amplifies to be transmitted to user; And send to described data processing module 32 by converting digital signal to after the radiofrequency signal amplification of the user received transmitting.
Understandable, the RF Amplifier Module 33 in the present embodiment can support multiple communication standards of same operator, and it also can comprise multiple radio frequency amplifying unit, and each radio frequency amplifying unit correspondence supports a communication standard of same operator.Like this, data-directed can be transmitted to based on communication standard label the radio frequency amplifying unit supporting this communication tags by described data processing module 32.
In addition, the far-end unit RU of the present embodiment also comprises powered module 34 and monitoring module 35, and concrete structure and function please refer to above-described embodiment.
Below, in conjunction with Figure 12, the operation principle of a kind of fibre system that the utility model embodiment provides is described in detail.The optical fiber distribution system operation principle that the present embodiment provides is as follows:
down link
Step 1:MU data receiver
The MU of single system structure receives information source is sent to MU respective radio-frequency port radiofrequency signal by feeder line.
Step 2:MU data processing
The radiofrequency signal digitized processing that the radio-frequency module of MU will receive, and add the packing of communication standard label by data processing module and form digital signal, digital signal converts light signal to through photoelectric conversion module and exports.
Step 3:MU data send
Optical signals optical fiber is sent to the optical port of EU by MU by optical port.
Step 4:EU data receiver
EU optical port receives the light signal from MU, and the MU optical signal transmission fiber of different operators accesses the different optical port of EU.Meanwhile, Ethernet data is linked into EU by Ethernet interface.
Step 5:EU data processing
The light signal received is converted to the signal of telecommunication by photoelectric conversion module by EU, the data processing module that EU together delivered to by this signal of telecommunication and Ethernet data carries out data processing packing, and form the digital signal of multichannel, be divided into multipath light signal by light shunt/conjunction road module and deliver to optical port after converting light signal to.
Step 6:EU data send
Optical signals composite fiber (containing power line) is sent to the optical port of EU or RU by expansion optical port by EU.
Step 7:RU data receiver
RU optical port receives the light signal from EU.
Step 8:RU data processing
The light signal of reception is converted to digital signal by photoelectric conversion module by RU, when RU adopts single system structure, the data processing module of RU is by identification communication standard flag bit, the data filtering of the communication standard do not supported by RU is lost, then send to RF Amplifier Module to be converted to radiofrequency signal the data after filtration, amplify through signal and send; When RU adopts full system type pictorial structure, the data processing module of RU is by identification communication standard flag bit, different systems packet is carried out Data Analysis process respectively, form new digital signal, and the RF Amplifier Module being distributed to standard corresponding is converted to radiofrequency signal, amplifies through signal and send.
Step 9:RU quorum sensing inhibitor
Radiofrequency signal is coupled to antenna by feeder line, and signal amplitude to be shot out by antenna and to realize quorum sensing inhibitor, user terminal receives the transmission that namely data complete a downstream signal.
up link
Step 1:RU data receiver
User terminal sends signal in compartment system coverage, and the communication standard of this signal is supported by RU.
Step 2:RU data processing
RU receives the radiofrequency signal that user terminal sends out, and after amplifying, be converted to digital signal again, the data processing module of RU processes these data and adds communication standard label, then transfers to photoelectric conversion module to be converted to light signal output.
Step 3:RU data send
Optical signals composite fiber (containing power line) is sent to the optical port of EU by RU by optical port.
Step 4:EU data receiver
EU optical port (by light shunt/conjunction road module) receives the light signal from RU.
Step 5:EU data processing
The light signal being synthesized a road by light shunt/conjunction road module is converted to the signal of telecommunication by the photoelectric conversion module of EU, and transfer to data processing module process to form new packet, simultaneously according to the communication standard label of packet, by new data packets to the corresponding photoelectric conversion module of communication standard or ethernet module, then it is converted into light signal after receiving packet to be sent to photoelectric conversion module, if be sent to ethernet module, then by ethernet module, data are sent to Internet.
Step 6:EU data send
Optical signals optical fiber, by the optical port corresponding to photoelectric conversion module selected according to data standard label, is sent to MU optical port by EU.
Step 7:MU data receiver
MU optical port receives the light signal from EU.
Step 8:MU data processing
The light signal of reception is converted to digital signal by photoelectric conversion module by MU, after the data processing module of MU carries out Data Analysis process to packet, is sent to radio-frequency module, is converted to radiofrequency signal.
Step 9:MU signal is uploaded
Radiofrequency signal is coupled to base station/RRU by feeder line, completes the transmission of a upward signal.
Visible, the fibre system of the present embodiment and method are by adding the communication standard label of different operators in row packet over/under, and realize the classification of uplink/downlink packet according to communication standard label and directed forward or filter according to communication standard label the communication standard data that uplink/downlink packet do not support, thus the access unit (MU) that different operators business is supported in access can be expanded.The optical fiber distribution system of different location of the present utility model information source multichannel access is used to cover an Operator Specific Service to a signal blind zone, when needing to carry out covering construction to other Operator Specific Services, expansion access on original optical fiber distribution system is only needed to support the access unit (MU) of other Operator Specific Services, without the need to adding whole set of system again, do not need to repeat construction.Therefore more effectively utilize existing resource, save operator's quorum sensing inhibitor cost and reduce covering engineering construction difficulty.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Claims (7)
1. expand the expanding element of variable amounts for one kind, it is characterized in that, comprise multiple input photoelectric conversion module, with input described in each the data processing module that photoelectric conversion module is connected, the output photoelectric modular converter be connected with described data processing module and the light that is connected with described output photoelectric modular converter along separate routes/close road module; Described light shunt/conjunction road module comprises a 3rd light mouth, K a 4th light mouth and connects the processing unit of described 3rd light mouth and K the 4th light mouth, described 3rd light mouth correspondence connects described output photoelectric modular converter, and each described 4th light mouth connects expanding element or far-end unit; Wherein, K be greater than 1 natural number.
2. expanding element as claimed in claim 1, it is characterized in that, described processing unit comprises 1*K wavelength division multiplexer and 1*K optical branching device;
A descending input port correspondence of described 1*K optical branching device connects described 3rd light mouth, and K descending delivery outlet correspondence of described 1*K optical branching device connects described K the 4th light mouth;
K up input port correspondence of described 1*K wavelength division multiplexer connects described K the 4th light mouth, and a up delivery outlet correspondence of described 1*K wavelength division multiplexer connects described 3rd light mouth.
3. expanding element as claimed in claim 1, it is characterized in that, also comprise ethernet module, monitoring module and power module, described ethernet module is connected with described data processing module; Described monitoring module and power module are all connected described input opto-electronic conversion mould, data processing module, output photoelectric modular converter and light shunt/conjunction road module.
4. an optical fiber distribution system, it is characterized in that, comprise multiple access unit, connect at least one expanding element of access unit described in each respectively, and at least one far-end unit to be connected with described expanding element, wherein, access unit described in each adopts the single system structure supporting multiple communication standards of different operators respectively, and described expanding element is the expanding element of the expansion variable amounts as described in claims 1 to 3 any one.
5. optical fiber distribution system as claimed in claim 4, it is characterized in that, access unit described in each comprises multiple radio-frequency module, the data processing module be connected with radio-frequency module described in each and connects the photoelectric conversion module of described data processing module.
6. optical fiber distribution system as claimed in claim 4, it is characterized in that, far-end unit described in each adopts the single system structure supporting multiple communication standards of different operators respectively, far-end unit described in each comprises the photoelectric conversion module, data processing module and the RF Amplifier Module that connect successively, and described photoelectric conversion module is provided with optical port connects described expanding element a 4th light mouth with correspondence.
7. optical fiber distribution system as claimed in claim 4, it is characterized in that, far-end unit described in each adopts the full system type pictorial structure simultaneously supporting multiple communication standards of different operators, described in each, far-end unit comprises photoelectric conversion module, the data processing module be connected with described photoelectric conversion module and the multiple RF Amplifier Modules be connected with described data processing module respectively, RF Amplifier Module described in each adopts the structure supporting multiple communication standards of different operators respectively, described photoelectric conversion module is provided with optical port connects described expanding element a 4th light mouth with correspondence.
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